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Elliptically polarized absorption spectroscopy and observation of spin coherence in intrinsic GaAs
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10.1063/1.2150276
/content/aip/journal/apl/87/26/10.1063/1.2150276
http://aip.metastore.ingenta.com/content/aip/journal/apl/87/26/10.1063/1.2150276
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Time-resolved absorption quantum beats for an intrinsic bulk GaAs at a photon energy of 1.5202 eV. The curve a is taken for counter-helicity elliptically polarized pump and probe beams and shifted up for clarity, and curve b for co-helicities. Solid circle points are experimental data and lines are fitting to the experimental data by Eq. (6).

Image of FIG. 2.
FIG. 2.

Photon energy dependences of quantum beats and absorption changes in the GaAs for same otherwise conditions. (a) Absorption quantum beats for co-helicity elliptically polarized pump and probe beams. Solid circle points are experimental data and lines are fitting to the experimental data by Eq. (6). (b) Absorption changes for collinearly polarized pump and probe beams. , and are the energies of band gap, free exciton, and photon, respectively. Curves a1, a2 and b1, b2 are shifted up for clarity.

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/content/aip/journal/apl/87/26/10.1063/1.2150276
2005-12-23
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Elliptically polarized absorption spectroscopy and observation of spin coherence in intrinsic GaAs
http://aip.metastore.ingenta.com/content/aip/journal/apl/87/26/10.1063/1.2150276
10.1063/1.2150276
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